156402 has 12 divisors (see below), whose sum is σ = 338910. Its totient is φ = 52128.

The previous prime is 156371. The next prime is 156419. The reversal of 156402 is 204651.

It is a happy number.

156402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 53361 = 321^2 + 231^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 8689 = 156402 / (1 + 5 + 6 + 4 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4327 + ... + 4362.

2¹⁵⁶⁴⁰² is an apocalyptic number.

156402 is an abundant number, since it is smaller than the sum of its proper divisors (182508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156402 is a wasteful number, since it uses less digits than its factorization.

156402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697 (or 8694 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 156402 is about 395.4769272663. The cubic root of 156402 is about 53.8783268743.

The spelling of 156402 in words is "one hundred fifty-six thousand, four hundred two".